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Sepijel 305

Sepijel 305: Versatile Thickener and Stabilizer for Cosmetic Formulations

Sepijel 305 is a synthetic polymer, specifically a polyacrylate crosspolymer-6, widely used in the cosmetics industry as a thickening, stabilizing, and emulsifying agent. It offers formulators a unique set of properties, allowing for the creation of elegant and effective skincare, haircare, and makeup products.

Why Choose Sepijel 305 for Your Cosmetic Formulations?

Excellent Thickening Performance: Sepijel 305 provides efficient thickening in a wide pH range (3-12), making it suitable for various formulations, including acidic and alkaline products. It creates clear, elegant gels and imparts a luxurious texture to creams and lotions.

Stabilizing Properties: This polymer stabilizes emulsions, preventing separation and ensuring the long-term stability of cosmetic products. It is particularly effective in stabilizing oil-in-water emulsions.

Sensory Enhancement: Sepijel 305 contributes to a pleasant skin feel, providing a light, non-sticky, and non-greasy texture. It can also enhance the spreadability of products.

Versatility: Sepijel 305 is compatible with a wide range of cosmetic ingredients, including oils, silicones, and various active substances. This versatility allows formulators to create diverse product types.

Cold Processable: Sepijel 305 can be processed at room temperature, simplifying the manufacturing process and reducing energy consumption.

Detailed Application Options and Areas of Use in Cosmetics:

Sepijel 305 finds application in a broad spectrum of cosmetic products:

Skincare:

Gels: Creates clear, refreshing gels for facial and body care, providing a light and hydrating feel.
Creams and Lotions: Improves the texture and stability of creams and lotions, enhancing their sensory properties and preventing separation.
Serums: Thickens water-based serums, providing a smooth and luxurious application.
Facial Cleansers: Can be used in gel-based cleansers to provide a gentle and effective cleansing action.
Sunscreens: Helps to stabilize sunscreen emulsions and improve their texture.

Haircare:

Shampoos and Conditioners: Contributes to the viscosity and texture of shampoos and conditioners, improving their application and rinse-off properties.
Hair Styling Gels: Creates clear, non-sticky hair gels that provide hold and control.

Makeup:

Foundations and Primers: Improves the texture and spreadability of foundations and primers, creating a smooth and even application.
Mascara and Eyeliner: Helps to thicken and stabilize mascara and eyeliner formulations.

Specific Examples of Use:

In a lightweight facial gel, Sepijel 305 provides a refreshing and hydrating feel without any stickiness.

In a rich body cream, it ensures a smooth, luxurious texture and prevents oil separation.

In a hair styling gel, it creates a clear, non-flaky gel that provides strong hold.

In a sunscreen lotion, it helps to evenly distribute the UV filters and prevents the product from feeling greasy.

Cosmetic Recipe Using Sepijel 305:

Hydrating Facial Gel:

Phase A:

Water (Distilled or Deionized): 85%
Sepijel 305: 1%

Phase B:

Glycerin: 5%
Hyaluronic Acid (Low Molecular Weight): 0.5%
Preservative (e.g., Phenoxyethanol, Ethylhexylglycerin): as per manufacturer's recommendations

Instructions:

Slowly add Sepijel 305 to the water while stirring vigorously to prevent clumping. Use a high-shear mixer if available.

Continue stirring until the Sepijel 305 is fully hydrated and a clear gel is formed. This may take some time.

In a separate container, combine the glycerin and hyaluronic acid.

Add Phase B to Phase A while stirring gently.

Add the preservative and mix well.

Adjust the pH if necessary (ideally between 5-6 for facial products).

Recommendations for Use:

Sepijel 305 is typically used at concentrations between 0.5% and 2%, depending on the desired viscosity.

It is important to ensure proper dispersion of the polymer in the water phase to avoid lumping. High-shear mixing is recommended, especially at higher concentrations.

Sepijel 305 is compatible with a wide range of ingredients, but it is always recommended to perform compatibility testing in your specific formulation.

While Sepijel 305 is stable over a wide pH range, it is generally recommended to keep the pH of finished products within the optimal range for skin (4.5-5.5) or hair (4.5-7).

Mylo-Opt delivers worldwide.

Date:

today

Author:

Олена, Сараево

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1 August 2026

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Впечатление от покупки нейтральное.

INCI	Polyacrylamide & C13-14 Isoparaffin & Laureth-7
Other
Att brand	France
Color product	opaque turbid
Features	All information presented on the site is for reference only
Input percentage	until 3%
Minimum count	1
Name	Sepijel 305
Packaging	container for transportation
Solubility	in water (creates a gel)
View	opaque cloudy gel